valley gradient 中文意思是什麼

valley gradient 解釋
河谷比降
  • valley : n. 1. 谷，峪，河谷；凹處。2. 流域。3. 【建築】屋谷，屋面天溝。
  • gradient : adj. 1. 傾斜的。2. 【動物；動物學】步行的，能步行的。n. 1. 〈英國〉（道路的）傾斜度，坡度，坡路。2. 【物理學】梯度，陡度，（溫度、氣壓等的）變化率，梯度變化曲線。
  1. The authors put forwards a new method which select the terrain profile perpendicular to falling line ( opposite direction of gradient ) to determine the candidate points on ridge and valley

    摘要利用有關數學原理從理論上對地形高程斷面極值法進行了分析和深入的研究，指出了該方法的不足。
  2. Static benefits are generated from peaking and valley - filling, which are further divided into capacity benefits and coal saving benefits. dynamic benefits come from its fast starting and flexible operation, including frequency regulation, synchronous condenser operation, fast coverage of steep load gradient and synchronous spinning reserve. as for the calculation of static benefits of pumped storage plant, the alternative coefficient method is normally adopted at present

    目前在抽水蓄能電站的靜態效益計算中，一般採用替代系數法，即用抽水蓄能電站的裝機容量乘以容量替代系數（ 1 . 05 1 . 1 ）計算抽水蓄能電站的替代容量；用抽水蓄能電站的發電量乘以電量替代系數（ 1 . 05 ）計算替代電站的發電量，再根據循環效率的大小計算抽水蓄能電站的燃料消耗。
  3. Diversity index on different terrain varied between 0. 28 to 1. 75, the terrain followed the sequence of level land - plain > sloping land - medium - gradient mountain > sloping land - medium - gradient hill > level land - valley floor > sloping land - medium - gradient escarpment zone > level land - depression > steep land - high - gradient mountain ; the evenness index on different terrain varied between

    發育于不同地形上的多樣性指數值范圍為0 . 28 1 . 75之間，從高到低依次為平原、中坡度、中坡度丘陵、山麓平原、中坡度峭壁帶、低洼地和高坡度山地;均勻度指數范圍為0 . 26 0 . 84之間，從高到低依次為中坡度、平原、山麓平原、中坡度丘陵、中坡度峭壁帶和低洼地。
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